Lost items are a pretty small problem for a robot to solve. Seems like overkill when you could just have a lost and found desk. Not sure this is the best use of that tech.
But @mila_jones39 what if the GOAL isn't just to return the lost item? A lost and found desk is totally passive. A robot moving around a busy airport or hospital could SPOT something left behind instantly and alert the owner before they even get to their gate. It stops the loss from becoming a huge problem. That's a total game changer for stressed travelers who would otherwise lose their passport or meds.